114 lines
4.5 KiB
Python
114 lines
4.5 KiB
Python
from django.shortcuts import render, get_object_or_404, redirect
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from django.contrib.auth.decorators import login_required
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from django.contrib import messages
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from django.http import JsonResponse
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from django.urls import reverse
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from django.utils import timezone
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from processes.models import ProcessInstance, StepInstance
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from invoices.models import Invoice
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from installations.models import InstallationReport
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from .models import CertificateTemplate, CertificateInstance
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from _helpers.jalali import Gregorian
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def _to_jalali(date_obj):
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try:
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g = Gregorian(date_obj)
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y, m, d = g.persian_tuple()
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return f"{y}/{m:02d}/{d:02d}"
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except Exception:
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return ''
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def _render_template(template: CertificateTemplate, instance: ProcessInstance):
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well = instance.well
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rep = instance.representative
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latest_report = InstallationReport.objects.filter(assignment__process_instance=instance).order_by('-created').first()
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ctx = {
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'today_jalali': _to_jalali(timezone.now().date()),
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'request_code': instance.code,
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'company_name': (template.company.name if template.company else '') or '',
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'customer_full_name': rep.get_full_name() if rep else '',
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'water_subscription_number': getattr(well, 'water_subscription_number', '') or '',
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'address': getattr(well, 'address', '') or '',
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'visit_date_jalali': _to_jalali(getattr(latest_report, 'visited_date', None)) if latest_report else '',
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}
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title = (template.title or '').format(**ctx)
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body = (template.body or '')
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for k, v in ctx.items():
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body = body.replace(f"{{{{ {k} }}}}", str(v))
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return title, body
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@login_required
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def certificate_step(request, instance_id, step_id):
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instance = get_object_or_404(ProcessInstance, id=instance_id)
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# Ensure all previous steps are completed and invoice settled
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prior_steps = instance.process.steps.filter(order__lt=instance.current_step.order if instance.current_step else 9999)
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incomplete = StepInstance.objects.filter(process_instance=instance, step__in=prior_steps).exclude(status='completed').exists()
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if incomplete:
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messages.error(request, 'ابتدا همه مراحل قبلی را تکمیل کنید')
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return redirect('processes:request_list')
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inv = Invoice.objects.filter(process_instance=instance).first()
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if inv:
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inv.calculate_totals()
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if inv.remaining_amount != 0:
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messages.error(request, 'مانده فاکتور باید صفر باشد')
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return redirect('processes:request_list')
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template = CertificateTemplate.objects.filter(is_active=True).order_by('-created').first()
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if not template:
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return render(request, 'certificates/missing.html', {})
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title, body = _render_template(template, instance)
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cert, _ = CertificateInstance.objects.get_or_create(
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process_instance=instance,
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defaults={'template': template, 'rendered_title': title, 'rendered_body': body}
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)
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# keep rendered up-to-date
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cert.template = template
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cert.rendered_title = title
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cert.rendered_body = body
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cert.save()
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previous_step = instance.process.steps.filter(order__lt=instance.current_step.order).last() if instance.current_step else None
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next_step = instance.process.steps.filter(order__gt=instance.current_step.order).first() if instance.current_step else None
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if request.method == 'POST':
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cert.approved = True
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cert.approved_at = timezone.now()
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cert.save()
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step_instance, _ = StepInstance.objects.get_or_create(process_instance=instance, step_id=step_id)
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step_instance.status = 'completed'
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step_instance.completed_at = timezone.now()
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step_instance.save()
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if next_step:
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instance.current_step = next_step
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instance.save()
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return redirect('processes:step_detail', instance_id=instance.id, step_id=next_step.id)
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return redirect('processes:request_list')
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return render(request, 'certificates/step.html', {
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'instance': instance,
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'template': template,
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'cert': cert,
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'previous_step': previous_step,
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'next_step': next_step,
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})
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@login_required
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def certificate_print(request, instance_id):
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instance = get_object_or_404(ProcessInstance, id=instance_id)
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cert = CertificateInstance.objects.filter(process_instance=instance).order_by('-created').first()
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template = cert.template if cert else None
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return render(request, 'certificates/print.html', {
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'instance': instance,
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'cert': cert,
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'template': template,
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})
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